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Surface diffusion of poisoning species during CO and formic acid oxidation on PtAu surface. The key role of the active site
(Elsevier Science, 2021-01-31)
A comparative study of the Pt and Pt/Au surface towards CO and formic acid oxidation was performed by conventional electrochemical techniques used in combination with an electrochemical flow cell (four-electrode configuration) ...
The electrochemical stability of thiols on gold surfaces
(Elsevier Science Sa, 2017-10)
In this paper we present a comparative analysis of the electrochemical stability of alkanethiols, aromatic and heterocyclic thiols on the Au(111) and Au(100) faces in relation to the theoretical energetic data. The peak ...
Two-step biocompatible surface functionalization for two-pathway antimicrobial action against Gram-positive bacteria
(Elsevier Science, 2018-04)
The use of indwelling devices has emerged as a frequent and often life-saving medical procedure. However, infection in prosthetic surgery is one of the most important and devastating complications. Once the biofilm has ...
Electrochemical stability of the reconstructed Fe3O4(001) surface
(Wiley-VCH, 2020-12-01)
Establishing the atomic-scale structure of metaloxide surfaces during electrochemical reactions is a key step to modeling this important class of electrocatalysts. Here, we demonstrate that the characteristic (p2p2)R458 ...
Key hydrological processes in the Del Azul Creek basin, sub-humid Pampean Plain
(Elsevier, 2021-02)
Groundwater plays an important role in the economic development of the Chaco-Pampean Plain (Argentina), where industry, agriculture and cattle farming are the main economic activities. The 66% of the country's population ...
New aspects of the surface chemistry of sulfur on Au(111): Surface structures formed by gold-sulfur complexes
(Elsevier Science, 2019-09)
Sulfur adsorption on gold surfaces has been extensively studied because of the key role of sulfur species in heterogeneous catalysis, and, more recently, due to the interest in the synthesis of anisotropic gold nanoparticles ...
The “critical limits for crystallinity” in nanoparticles of the elements: A combined thermodynamic and crystallographic critique
(Pergamon-Elsevier Science Ltd, 2018-03)
The theme of the present work is the procedure for evaluating the minimum size for the stability of a crystalline particle with respect to the same group of atoms but in the amorphous state. A key goal of the study is the ...
Analysis of the Effect of Surface Hydrogen Concentration on the Hydrogen Oxidation Reaction: Voltammetry vs. Steady State
(Research Trends, 2017-07)
Starting from the modelling of the processes involved in the hydrogen oxidation reaction, the present work provides an explanation about the origin of the differences observed between the polarization curves obtained by ...
Spatial modulation of the electromagnetic energy transfer by excitation of graphene waveguide surface plasmons
(IOP Publishing, 2019-03-13)
We theoretically study the electromagnetic energy transfer between donor and acceptor molecules near a graphene waveguide (WG). The surface plasmons (SPs) supported by the structure provide decay channels which lead to an ...
Continuous treatment of an azo dye based on a combined ZVI/photo-Fenton setup. Process modelling by response surface methodology
(Elsevier, 2020-06)
The performance of a continuous system that sequentially couples a column filled with zero-valent iron with a photo-Fenton reactor was evaluated under mild acidic conditions. Studies were conducted to evaluate the better ...